From: Ralf Baechle <ralf@linux-mips.org>
Date: Thu, 8 Nov 2012 22:59:31 +0000 (+0100)
Subject: MIPS: compat: Implement is_compat_task() by testing for 32-bit address space.
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=6ad560b4546af6943820f780610e544aaae218c0;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

MIPS: compat: Implement is_compat_task() by testing for 32-bit address space.

So far is_compat_task() was testing for 32-bit registers if O32 support
was enabled and if O32 support was disabled but N32 enabled it was testing
for 32-bit address space.  So if both O32 and N32 were enabled a N32
task was not considered a compat task, whops.

This still leaves potential cases where O32 and N32 need different treatment
unsolved.  But that's another commit.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---

diff --git a/arch/mips/include/asm/compat.h b/arch/mips/include/asm/compat.h
index 58277e0e9cd4..3c5d1464b7bd 100644
--- a/arch/mips/include/asm/compat.h
+++ b/arch/mips/include/asm/compat.h
@@ -290,7 +290,7 @@ struct compat_shmid64_ds {
 
 static inline int is_compat_task(void)
 {
-	return test_thread_flag(TIF_32BIT);
+	return test_thread_flag(TIF_32BIT_ADDR);
 }
 
 #endif /* _ASM_COMPAT_H */